Cutting device.



S. M. HEYWOOD.

CUTTING DEVICE.

APPLICATION FILED Aue.25, 1915.

1,168,633. Patented Jan. 18, 1916.

a fin/17676 SUSAN M. HEYWOOD, OF ARDEN, NORTH CAROLINA.

CUTTING DEVICE.

Specification of Letters Patent.

Patented J an. 18, 1916.

Application filed August 25, 1915. Serial No. 47,240.

To all whom it may concern:

Be it known that I, SUSAN M. HEYWOO-D, a citizen of the United States, residing at Arden, North Carolina, have invented certain new and useful Improvements in Cutting Devices, of which the following is a clear, full, and exact description.

This invention relates to cutting devices and one of the objects of the same is to provide a cutting device for paper, cloth, etc., or it may be used as a ripper for cutting threads of a fabric.

Other objects of the invention are to provide a practical, reliable and simple cutting device for any desired purpose.

These being among the objects of the present invention the same consists of certain features of construction and combinations of parts to be hereinafter described and then claimed with reference to the accompanying drawings illustrating a desirable embodiment of the invention and in which Figure 1 is an elevation of one side of the device showing a blade in position therein; Fig. 2 is an elevation of the other side of the device; F 3 is a perspective view of the blade holder; Fig. 4C is an enlarged edge view of the device'p'artly in section; and Fig. 5 is an enlarged detail section through the blade adjusting and setting portions of the device.

Referring to the drawings, the casing for the blade and blade holder comprises similarly formed side plates 10, 11, connected together and spaced apart by means of rivets 12 and sleeves 12. This case serves as a handle and also as a guard for the blade.

*The blade holder 13 is shown in detail in Fig. 3 and is pivoted at one end upon an eyelet 11 which passes through corresponding ends of the side plates 10, 11, and through said eyelet a loop or ring 15 passes to provide means for attaching a tape or cord thereto.

Blade holder 13 is angular or L-shaped so as to provide a'lateral rearward extension 16 at the free end. thereof, and said blade holder is positioned, by means of its pivotal connection. within the case, handle or guard which constitutes the supporting member for the blade holder. Preferably, the said blade holder is slotted at its outer end as at 17, the slot exte'ndin into the shank of the blade holder and also into the lateral extension 16. The slot 17 is terminated at its inner end by an abutment 18, and preferably at the outer end of the extension 16 by an abutment 19, the abutments 18 and 19 being located at approximately right angles to each other. Said blade holder is preferably composed of metal and is resilient, or rather the portions at opposite sides of the slot therein are resilient so as to provide a clamp for the blade. In order to utilize the resiliency of the blade holder a stud or bolt 20 passes through opposite openings 21 in the resilient sides of the blade holder, said stud being terminated by a head 22 at one end, while at the other end said stud is provided with a screw threaded stem 23 onto which is screwed a thumb nut 24:. Preferably the head 22 is guided in .a slot 25 in the side plate 11 and the stem 23 is guided in a slot 26 in the plate 10, said slots being opposite each other and arranged on a curve concentric with the pivot 14. It will be seen that the end Walls of the slot 25 constitute abutments for the head 22. A razor blade 27, such as used in safety razors, may be clamped in the blade holder 13. It is positioned in said holder with one end thereof resting upon the shoulder or abutment 18 and the back thereof upon the abut ment 19. The stud 20 may be passed through a hole in the blade 27 so that said blade may be fixed in the blade holder with the knife edge 28 presented, in the closed position of the parts, outwardly. By tightening up the nut 24 the blade will be clamped in the blade holder by the action of the head 22 on the springy side walls thereof and a further tightening up of the nut will set the blade holder and blade in an desired position with respect to the supporting member or guard. 10, 11. i

In Fig. 1 the blade holder and bladeare shown in dotted lines as retracted back of the supporting member so as to be guarded thereby. If the nut be sufiiciently loose the knife edge 28 of the blade may be projected beyond one edge of the supporting member or guard into the position shown in full lines in Figs. 1 and 2 or into any desired projected angular position with respect to the normal position of the blade holder and blade behind the guard.

By the present improvement discarded safety razor blades may be made use of, and it will be seen that when the knife edge of such blade is projected, one corner of the blade will extend beyond the supporting member or guard, such corner furnishing desirable means for ripping threads, etc.

It is obvious that the invention is susceptible of modification as parts may be added, parts omitted or parts substituted without departing'from the spirit and scope of the invention as claimed.

What I claim as new is:

1. In a cutting device, the combination of a supporting member, a cutting blade pivotally supported on and guarded by said "member with its knife edge presented in the position between opposite edges of said member, said holder being provided with means for positioning a cutting blade therein with its knife edge directed outwardly toward the adjacent edge of said holder to be projectable beyond said edge to cutting position, said holder being movable in said outward direction only, from its said closed position, means for moving said holder in said direction, and means for stopping the 35 backward movement of said holder when it is in said closed position.

3. In a cutting device, the combination of a supporting member, a blade holder pivoted at one end to one end of said member,

a cutting blade of the thin safety razor type,

meansfor positioning said blade on said holder with its inner end close to the pivot of said holder, and with its knife edge projecting from said holder and directed outwardly toward the adjacent edge of said holder to be projectable beyond said edge to cutting position, said holder and blade being movable in said outward direction, means for moving said holder and blade in said member.

4. In a cutting device, the combination of a supporting plate or member, a pivoted blade holder, said plate having two spaced abutments, a blade supported by said holder with its knife edge presented for movement outwardly, a bolt passing through said holder and blade and between said abutments, and an adjusting nut on the shank of said bolt. Q I

5. In a cutting device, the combination of a supporting member, a blade holder having spring side walls and pivoted to said member, and means guided by said member for acting on said walls for compressing the sides of said holder to clamp a blade to said holder, said supporting member being provided with meansfor guiding said compressing means and for limiting its movement between opposite edges of said supporting member.

6. In a cutting device, the combination of a supporting member, a blade holder pivoted to said member, and means for clamping a blade to said holder comprising means for adjusting said blade holder to a number of angular positions with respect to its retracted position.

7. In a cutting device, the combination of a pair of connected supporting plates, a pivoted slotted blade holder, said plates being slotted concentrically with the pivot, a blade supported by said holder with its knife edge presented for movement outwardly, a bolt passing through said holder, blade, and plate slots, and an adjusting nut on the shank of said bolt.

Signed at Fletcher, N. C., this 18th day of August, 1915.

SUSAN M. HEYWOOD. 

